Applied Mathematics @ UC Berkeley (May 2028) · I build software that answers market questions with real math.
gijun42.com · LinkedIn · gijunpark42@gmail.com
| Project | What it is | What it demonstrates |
|---|---|---|
| reticulum-ai · live | A 264-company, 1,067-edge graph of the AI/semiconductor supply chain, built from 174 earnings-call transcripts. Includes an event study on hand-labeled "capacity sold out" signals across 71 earnings calls (abnormal returns vs. SOXX/SPY/QQQ, t-tests, hit rates). | Data engineering + event-study methodology + sector depth |
| spactrum42 | SPAC merger dilution analyzer — pro forma cap table, net cash per share, and premium/discount to NAV across the full 0–100% redemption spectrum. Pure TypeScript math engine verified by a Vitest suite (golden-master, monotonicity, ownership-sum tests). | Deal mechanics + cap-table math + tested, dependency-free code |
| skhynix-premium · live | Real-time tracker of the SK hynix NASDAQ ADR premium over its Seoul listing (KRX 000660), FX-adjusted at the 10-ADS ratio, across KRX regular/NXT and US pre/after-market sessions. | Cross-listing arbitrage mechanics + real-time data plumbing |
- Society of Actuaries exams: P (Probability) · FM (Financial Mathematics) · SRM (Statistics for Risk Modeling)
- Event-study & abnormal-return analysis, hypothesis testing, regression & statistical risk modeling
- Akuna Capital Options 101 — options pricing, Greeks, volatility, market-making fundamentals
- AMATYC Student Mathematics League — 4th place (Oct 2025)
Python (pandas · NumPy · SciPy) TypeScript SQL C++ R MATLAB Next.js/React FastAPI Vitest
Fluent in Korean & English · Previously: Math TA for 400+ students at Santa Monica College · Republic of Korea Army